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Access to port 0

admin_2
Level 3
Level 3

Hi,

Can someone explain to me why we are seeing requests on port 0

Oct 23 12:39:22: %SEC-6-IPACCESSLOGP: list vlan88-inb permitted udp x.x.x.167(0) -> y.y.y.224(0), 3 packets

1 Reply 1

Collin Clark
VIP Alumni
VIP Alumni

For some reason when packets are logged by an ACL they show up as port 0. Easy fix though:

access-list 100 deny tcp any any eq 0

access-list 100 deny udp any any eq 0

access-list 100 permit tcp host 1.1.1.1 host 10.10.9.9 eq 139

HTH and please rate.

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